NR 464.03(1)(a)4.a.a. Uses any process water other than fresh water or paper machine white water. NR 464.03(1)(a)4.b.b. Uses any process water with a total HAP concentration greater than 400 parts per million by weight. NR 464.03(1)(b)(b) At new affected sources, the total HAP emissions from the equipment systems listed in par. (a) 1., 3. and 5. and all of the following equipment systems shall be controlled: NR 464.03(2)(2) The owner or operator of each pulping system using a semi-chemical or soda process subject to the requirements of this chapter shall control the total HAP emissions from the following equipment systems, as specified in subs. (3) and (4). NR 464.03(2)(a)(a) At each existing affected sources, the total HAP emissions from each LVHC system shall be controlled. NR 464.03(2)(b)(b) At each new affected source, the total HAP emissions from each LVHC system and each pulp washing system shall be controlled. NR 464.03(3)(3) Equipment systems listed in subs. (1) and (2) shall be enclosed and vented into a closed-vent system and routed to a control device that meets the requirements specified in sub. (4). The enclosures and closed-vent system shall meet the requirements specified in s. NR 464.08. NR 464.03(4)(4) The control device used to reduce total HAP emissions from each equipment system listed in subs. (1) and (2) shall do one of the following: NR 464.03(4)(b)(b) Reduce the total HAP concentration at the outlet of the thermal oxidizer to 20 parts per million or less by volume, corrected to 10% oxygen on a dry basis. NR 464.03(4)(c)1.1. A thermal oxidizer designed and operated at a minimum temperature of 871°C (1600 °F) and a minimum residence time of 0.75 seconds. NR 464.03(4)(c)2.2. A boiler, lime kiln or recovery furnace by introducing the HAP emission stream with the primary fuel or into the flame zone. NR 464.03(4)(c)3.3. A boiler or recovery furnace with a heat input capacity greater than or equal to 44 megawatts (150 million British thermal units per hour) by introducing the HAP emission stream with the combustion air. NR 464.03(5)(5) Periods of excess emissions reported under s. NR 464.11 are not a violation of subs. (3) and (4) provided that the time of excess emissions, excluding periods of startup, shutdown or malfunction, divided by the total process operating time in a semi-annual reporting period does not exceed any of the following levels: NR 464.03(5)(a)(a) One percent for control devices used to reduce the total HAP emissions from the LVHC system. NR 464.03(5)(b)(b) Four percent for control devices used to reduce the total HAP emissions from the HVLC system. NR 464.03(5)(c)(c) Four percent for control devices used to reduce the total HAP emissions from both the LVHC and HVLC systems. NR 464.03 HistoryHistory: CR 00-175: cr. Register March 2002 No. 555, eff. 4-1-02. NR 464.04NR 464.04 Standards for the pulping system at sulfite processes. NR 464.04(1)(1) The owner or operator of each sulfite process subject to the requirements of this chapter shall control the total HAP emissions from the following equipment systems as specified in subs. (2) and (3): NR 464.04(1)(a)(a) At existing sulfite affected sources, the total HAP emissions from all of the following equipment systems shall be controlled: NR 464.04(1)(b)(b) At new affected sources, the total HAP emissions from the equipment systems listed in par. (a) and all of the following equipment shall be controlled: NR 464.04(2)(2) Equipment listed in sub. (1) shall be enclosed and vented into a closed-vent system which routes emissions to a control device that meets the requirements specified in sub. (3). The enclosures and closed-vent system shall meet the requirements specified in s. NR 464.08. Emissions from equipment listed in sub. (1) that do not need to be reduced to meet sub. (3) are not required to be routed to a control device. NR 464.04(3)(3) The total HAP emissions from both the equipment systems listed in sub. (1) and the vents, wastewater and condensate streams from the control device used to reduce HAP emissions shall be controlled as follows: NR 464.04(3)(a)(a) Each calcium-based or sodium-based sulfite pulping process shall do one of the following: NR 464.04(3)(a)1.1. Emit no more than 0.44 kilograms of total HAP or methanol per megagram (0.89 pounds per ton) of ODP. NR 464.04(3)(b)(b) Each magnesium-based or ammonium-based sulfite pulping process shall do one of the following: NR 464.04(3)(b)1.1. Emit no more than 1.1 kilograms of total HAP or methanol per megagram (2.2 pounds per ton) of ODP. NR 464.04 HistoryHistory: CR 00-175: cr. Register March 2002 No. 555, eff. 4-1-02. NR 464.05NR 464.05 Standards for the bleaching system. NR 464.05(1)(1) Each bleaching system that does not use any chlorine or chlorinated compounds for bleaching is exempt from the requirements of this section. Owners or operators of the following bleaching systems shall meet all the provisions of this section: NR 464.05(1)(b)(b) Bleaching systems bleaching pulp from kraft, sulfite or soda pulping processes that use any chlorinated compounds. NR 464.05(1)(c)(c) Bleaching systems bleaching pulp from mechanical pulping processes using wood, or from any process using secondary or non-wood fibers, that use chlorine dioxide. NR 464.05(2)(2) The equipment at each bleaching stage of the bleaching systems listed in sub. (1) where chlorinated compounds are introduced shall be enclosed and vented into a closed-vent system which routes emissions to a control device that meets the requirements specified in sub. (3). The enclosures and closed-vent system shall meet the requirements specified in s. NR 464.08. If process modifications are used to achieve compliance with the emission limits specified in sub. (3) (b) or (c), enclosures and closed-vent systems are not required. NR 464.05(3)(3) The control device used to reduce chlorinated HAP emissions, not including chloroform, from the equipment specified in sub. (2) shall do one of the following: NR 464.05(3)(a)(a) Reduce the total chlorinated HAP mass in the vent stream entering the control device by 99% or more by weight. NR 464.05(3)(b)(b) Achieve a treatment device outlet concentration of 10 parts per million or less by volume of total chlorinated HAP. NR 464.05(3)(c)(c) Achieve a treatment device outlet mass emission rate of 0.001 kg of total chlorinated HAP mass per megagram (0.002 pounds per ton) of ODP. NR 464.05(4)(4) The owner or operator of each bleaching system subject to sub. (1) (b) shall comply with par. (a) or (b) to reduce chloroform air emissions to the atmosphere, except the owner or operator of each bleaching system complying with extended compliance under s. NR 464.01 (1) (e) 1. to 3. shall comply with par. (a). The owner or operator shall: NR 464.05(4)(b)(b) Use no hypochlorite or chlorine for bleaching in the bleaching system or line. NR 464.05 HistoryHistory: CR 00-175: cr. Register March 2002 No. 555, eff. 4-1-02. NR 464.06NR 464.06 Standards for kraft pulping process condensates. NR 464.06(1)(1) The requirements of this section apply to owners or operators of kraft processes subject to the requirements of this chapter. NR 464.06(2)(2) The pulping process condensates from the following equipment systems shall be treated to meet the requirements specified in subs. (3), (4) and (5): NR 464.06(2)(c)(c) Each evaporator system condensate from both of the following: NR 464.06(2)(c)1.1. The vapors from each stage where weak liquor is introduced (feed stages). NR 464.06(2)(c)2.2. Each evaporator vacuum system for each stage where weak liquor is introduced (feed stages). NR 464.06(3)(3) One of the following combinations of HAP-containing pulping process condensates generated, produced or associated with the equipment systems listed in sub. (2) shall be subject to the requirements of subs. (4) and (5): NR 464.06(3)(b)(b) The combined pulping process condensates from the equipment systems specified in sub. (2) (d) and (e), plus pulping process condensate streams that in total contain at least 65% of the total HAP mass from the pulping process condensates from equipment systems listed in sub. (2) (a) to (c). NR 464.06(3)(c)(c) The pulping process condensates from equipment systems listed in sub. (2) (a) to (e) that in total contain a total HAP mass of 3.6 kilograms or more of total HAP per megagram (7.2 pounds per ton) of ODP for mills that do not perform bleaching or 5.5 kilograms or more of total HAP per megagram (11.1 pounds per ton) of ODP for mills that perform bleaching. NR 464.06(4)(4) The pulping process condensates from the equipment systems listed in sub. (2) shall be conveyed in a closed collection system that is designed and operated to meet the requirements specified in pars. (a) and (b): NR 464.06(4)(b)(b) If a condensate tank is used in the closed collection system, the tank shall meet both of the following requirements: NR 464.06(4)(b)1.1. The fixed roof and all openings, such as access hatches, sampling ports and gauge wells, shall be designed and operated with no detectable leaks as indicated by an instrument reading of less than 500 parts per million above background, and vented into a closed-vent system that meets the requirements in s. NR 464.08 and routed to a control device that meets the requirements in s. NR 464.03 (4). NR 464.06(4)(b)2.2. Each opening shall be maintained in a closed, sealed position, e.g., covered by a lid that is gasketed and latched, at all times that the tank contains pulping process condensates or any HAP removed from a pulping process condensate stream except when it is necessary to use the opening for sampling, removal, or for equipment inspection, maintenance or repair. NR 464.06(5)(5) Each pulping process condensate from the equipment systems listed in sub. (2) shall be treated according to one of the following options: NR 464.06(5)(b)(b) Discharge the pulping process condensate below the liquid surface of a biological treatment system and treat the pulping process condensates to meet the requirements specified in par. (c), (d) or (e), and measuring total HAP as specified in 40 CFR 63.457(g). NR 464.06(5)(c)(c) Treat the pulping process condensates to reduce or destroy the total HAPs by 92% or more by weight. NR 464.06(5)(d)(d) At mills that do not perform bleaching, treat the pulping process condensates to remove 3.3 kilograms or more of total HAP per megagram (6.6 pounds per ton) of ODP, or achieve a total HAP concentration of 210 parts per million or less by weight at the outlet of the control device. NR 464.06(5)(e)(e) At mills that perform bleaching, treat the pulping process condensates to remove 5.1 kilograms or more of total HAP per megagram (10.2 pounds per ton) of ODP, or achieve a total HAP concentration of 330 parts per million or less by weight at the outlet of the control device. NR 464.06(6)(6) Each HAP removed from a pulping process condensate stream during treatment and handling under sub. (4) or (5), except for those treated according to sub. (5) (b), shall be controlled as specified in s. NR 464.03 (3) and (4). NR 464.06(7)(7) For each control device, such as a steam stripper system or other equipment serving the same function, used to treat pulping process condensates to comply with the requirements specified in sub. (5) (c) to (e), periods of excess emissions reported under s. NR 464.05 are not a violation subs. (4) and (5) (c) to (e) and (6) provided that the time of excess emissions, including periods of startup, shutdown or malfunction, divided by the total process operating time in a semi-annual reporting period does not exceed 10%. The 10% excess emissions allowance does not apply to treatment of pulping process condensates according to sub. (5) (b) as done, for example, with the biological wastewater treatment system used to treat multiple wastewater streams to comply with the clean water act.
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Chs. NR 400-499; Environmental Protection – Air Pollution Control
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